Resize Video
Change a video's resolution — 1080p to 360p.
Change a video's resolution — 1080p to 360p.
How to use Resize Video
- Upload a video file from your device
- Pick a target resolution: 1080p, 720p, 480p, or 360p
- Download the resized H.264 MP4
About Resize Video
Resize Video changes a clip's resolution — 1080p, 720p, 480p or 360p — right in your browser, keeping the original aspect ratio so nothing looks stretched. You pick a target height and the width is scaled to match automatically. Because it runs an in-browser build of ffmpeg, you get ffmpeg-quality resizing without installing anything or typing a single command.
Dropping the resolution also drops the file size, which is the real reason most people resize a video: a 4K phone recording is too big to email or message, and shrinking it to 720p or 480p makes it easy to send, upload or share. If you're bringing a clip down for Instagram, this pulls the resolution and file size into a range the app will accept — just note that it changes size, not shape, so it won't crop a landscape video into a square or vertical frame.
It's a free alternative to resizing in Premiere Pro or other Adobe software when all you actually need is a smaller file, and it runs in a phone browser too, so you can resize on Android without an app. The output is re-encoded to H.264, so the resized video plays anywhere. There's no sign-up, no watermark and no limit on how many videos you do. Everything happens on your own device — your video is never uploaded to a server.
Frequently asked questions
- How do I resize a video?
- Upload your video, choose a target resolution like 720p or 480p, and start the resize. When it finishes, download the smaller MP4 — the whole process runs in your browser, so there's no software to install.
- How do I resize a video for Instagram?
- Choose a smaller resolution to bring a large clip's file size down to what Instagram accepts. It keeps the original aspect ratio, so it shrinks the video without cropping it to a square or 9:16 vertical frame; you'd need a separate crop tool for that.
- How do I make a video file smaller?
- Lowering the resolution lowers the file size, so resizing a 1080p or 4K clip down to 720p or 480p is the quickest way to shrink it. That makes it much easier to send by email or message, or to upload.
- Can I use this instead of ffmpeg on the command line?
- Yes. It runs the same ffmpeg engine, compiled to work inside your browser, so you get ffmpeg-style resizing without installing ffmpeg or typing scale commands yourself.
- Is this a free alternative to Premiere Pro or Adobe?
- For simply making a video smaller, yes. Premiere Pro and other Adobe tools can resize video but cost money and take time to set up; if a smaller file is all you need, this does it free in a few clicks.
- Can I resize a video on Android or my phone?
- Yes. It runs entirely in your mobile browser, so it works on Android and iPhone without installing an app. Larger videos just take longer to process on a phone than on a laptop.
- What resolutions can I resize to?
- You can scale a video down to 1080p, 720p, 480p or 360p, and the width adjusts automatically to keep the aspect ratio. Resizing to a resolution larger than the source won't add detail that wasn't captured.
- Does it keep the aspect ratio?
- Yes. You choose the height, like 720p, and the width is scaled to match, so the video keeps its original shape without stretching or squashing.
- Will resizing lose quality?
- Making a video smaller is lossy and a lower resolution holds less detail, but the settings keep it looking clean. Resizing to a resolution larger than the original will not add detail that was not there.
- Is my video uploaded to a server?
- No. It runs an in-browser build of ffmpeg, so your video is processed entirely on your own device and never uploaded anywhere.
- Why does the first run take a moment?
- The first time, it downloads a roughly 32 MB processing engine, which is cached afterwards so later runs start instantly.
- Is it free to use?
- Yes — completely free, with no sign-up, no watermark and no limits on how many videos you resize.